In October 2011, Apple won a patent detailing the method of sliding an onscreen mark to unlock the iOS operating system on a mobile device. Now, just four months later, Samsung's Galaxy Nexus is coming under fire for violating that patent.

Barnes & Noble has officially unveiled the second-generation Nook, a touch-screen e-ink e-reader that the company is branding as the "Simple Touch eReader." CNET's David Carnoy gets up close and personal with it.